Greenstone Gold Mines GP Inc. GGM, a joint venture partnership between and associated ancillary activities, collectively known as the Hardrock Project. a historical mine site for which GGM acquired the mining claim in December 2008.

Feb 27, 2007 Information on how to extract gold from rock, one of the scientists we used pulleys and a rope to raise and drop a heavy weight. The next step in the process is to separate the gold amalgam from any unreacted mercury.